OHAUS D52 Manuel D'instruction page 16

EN-14
desired RS232/485/USB Device and printing parameters; refer to the indicator's User
Manual for assistance in using the menus.
RS485
RS232
USB Device
Connection
The COM1 port provides an RS-232/RS-485 Device connection for external serial devices.
Table 2 indicates which indicator carries which signal on the COM1 port. Make the
connections as necessary.
COM1
Table 2
Indicator Signal
232TxD Transmit RS-232
232RxD Receive RS-232
232GND GND
485A Data +
485B Data -
485GND GND